Read the extract and answer the questions that follow.
“I cannot sing unless I’m free and if I cannot sing, I die,” he said. The Princess gave a great sob. “Then take your freedom,” she said, “I shut you in a golden cage because I loved you and wanted to have you all to myself. But I never knew it would kill you. Go. Fly away among the trees that are round the lake and fly over the green rice-fields. I love you enough to let you be happy in your own way.” She threw open the window and gently placed the little bird on the sill. He shook himself a little.
What happened when the bird was caged by the princess?